Adjustable embedded part welding machining device

The utility model discloses an adjustable embedded part welding machining device, and belongs to the technical field of welding machining of electric power auxiliary devices. A rectangular platform; guide slide rails are respectively arranged on the rectangular platform along diagonal lines; the two opposite auxiliary supports are movably installed on the rectangular platform through guide sliding rails, and extension plates are installed on the upper portions of the auxiliary supports. A through hole is formed in the extension plate in the direction perpendicular to the top plane of the rectangular platform. The adjusting fork plate is detachably mounted on the extension plate through the through hole; a pipe sleeve clamping piece is detachably mounted on the adjusting fork plate; a guide hole is formed in the pipe sleeve clamping piece in the axial direction, the size of the guide hole is matched with the outer diameter of a steel bar to be welded, and the steel bar is installed in the guide hole through a